buy怎么变成bought为什么buy不是改为i加ed,再加T呢?

buy怎么变成bought为什么buy不是改为i加ed,再加T呢? who___it grandfather didA buy B was bought C bought D did buy为什么选C不选D啊? With all she needed_______(buy).为什么答案是bought 为什么 buy with 和buy for 的区别He bought it for very little money.( 此处不能用with)请问,此处为什么不能用with Let's go to the nearest supermarket ______ some drinks,ok?A buy B bought C to buy D buying ,为什么选C不选A? 为什么i spent 5 yuan _this book.填buy,而不是to buy 或 bought? i would rather he would buy the house next year.这里用buy还是bought,为什么 为什么用buy而不是boughtDid shi buy them here?No she bought them in the US I wanted to buy a souvenir yesterday ,but Ididn't.为什么buy不是bought bought和buy是什么关系 buy的过去式是不是bought? who ______it?Grandfather did.A/buy b/was bought c/bought d/did buy我选择了b为什么错? He promised me if we_______ the game,he ________us a round of drink.A.win; will buy B.would win; would buy C.won; bought D.won; would buy怎么选,为什么 buy buy buy We bought many things in the supermarket.(改为否定）为什么是We didn't buy some thingsin the supermar为什么不要把some 变成any take为什么不能用buy来代替